The Adze (weapon)

This is essentially the one handed version of the two handed war mattock weapon.

The adze was a traditional carpenter's tool with a long thin axe-like blade attached at a right angle to the handle; they were used for cutting grooves. The Maori of New Zealand used adzes (called a Toki) as war weapons. Theirs were carved of bone or jade, usually decorated very elaborately, and lashed to a wooden handle.